hello im new to the forum and this is my first porsche

i have a 1990 c4 carrera convertible

car came with some damage to roof it was equipped with a power roof now i have installed a 1983 model non power roof fits perfect but can seem to find a spot to bolt the left and right arm to the inside of the 1/4 panel in side the car has anyboy ever swapped a power for a non power roof assembly
thanks in advance